Rail grinder



E. P. SIIVIARD.

RAIL GRINDER.

APPLxcATloN FILED Nov. 7, 1919.

11,405,019, Patented Jan.31,1922.

3 SHEETS-SHEET l.

INVENTOR.

.A TTORNEY.

E. P. SIMARD.

BML onlNnER.

APPLlCATlON FILED NOV. 7, 1919. l 1,405,019'. l Patented Jan. 31, 1922.

7 3 SHEETS-SHEET 2.

A TTORNE Y.

E. P. SIIVIARD.

` RAIL GRINDER.

APPLICATION FILED NOV. 7, 1919.

1,405,01 9, Patented Jan. 31, 1922.

3 SHEETS-SHEET 3.

f INVENTOR.

ATTORNEY.

EPIPHANE ie, enviaran, 'or fwiirrrieir, Mess'sontUsern:s.`

^ 'imm GRINDER.

iaoaoie.

To all (whom t may concern:

Be it known that l, ErrPr'rANn RISIMABD, a vcitizen of the United Sta-tes, l'residing at lValtham, in thecounty of li/liddleseV and State of Massachusetts, have inventedyeer-Y tain new and useful improvements in 'Rail Grinders, ot which the 'fr )llowing is a specification. A f" i f rlhis invention relates to V'portable rail grinders adapted especially Yfor use on street and electric railways wherethere are V many cars passing and wherey it isneces-V sary to frequently remove the rail grinder from the tracks.- Y y f For this purpose itis desirable that the rail grinder Vshould be so light as Vto be readily removed; that it' should be equipped with devices whereby it canfbe readily removed; that the adjustmentior the lgrind.'- ing operation should be rapid; that isQshould be capable of taking curves and vgrinding curves without specialadjustment; vand that Y vibration oit' the wheels, 'frame or' grinding parts should be avoided. v Y

There aresome types of such `machines which are devisedftor grinding ata gradual slant from the bottom of depressions in the rails, so that asha'rp depression will be smoothed down and the jolting off vthe'cars eliminated. My present device Vmight be used for this purpose,l but itis intended more particularly for use where depressions have been filled bykwelding material and where'there is an excess of Vsuch material which must `be smoothed or ground, down, to make the rail surface straight,

l accomplish the above purposes by providing Va relatively light machine including a movable carriage with the supports on the operating side relatively closetogethe'r, and preferably the wheels which run onV the other track somewhat ysmaller so that 'l the carriage will cant slightly in that direction. Y @n this carriage VI provide Vazrigid framework nearvtheoperating side having rigid vertical guideways, and vertically slidable in these guideways I provide `a rigid, movable trame. which carries 'a motor, preferably an electric motor, and rigid bear# ings in which is a shaft revoluble by the motor which carries'. a grinding tool, such as an emery wheel, in a position to ybe forced in contact with the rail on Ythe operating Specification of Letters Eatent. v.

Patented aan. 31,v 1,922. Application med november 7,1919. serial No. 336,350. z i

side by means of an adjusting screw which 1 derailing -wheels which l project rom "the carriage von the-operating sideV in such man@ ner thatthefcarriage and all the'parts can be tilted over on that side untilf'theV derail# Vingwheels strike the ground,atwhich point the `center 'of4 gravity has been so-shifted 'l that'the whole device Vcan ybe pushed from thetrack like adoublei'wheel wheelbarrow.v

l use no adjustable grinder. carrying arms, but the location of my framework, frame, motor, grinding 'L means and derailing wheels, all being proximate the ,operating side, providesenough weight to hold the' grindingfmeansin contact with the rail x and permitsY the V'centre of n gravity to be easily shifted ton derailing, whilev 'the weigh'tso placed, the rigidity,. and lthe compactn'ess Vof the partsl prevent vibra-tion .of the grindingmeans and thus yprfavent funeve'n work. i i i lln the drawings, `Fig. 1 is a perspective view ot' two street car rails, with'rny rail grinder in operating position.'

Fig. Q is .an Yenlargr-id or .exaggerated view showing Ya section ofrail in which a depression has been welded, all of the parte being exaggerated to show the principle. 2

Fig. is an elevation from the operating side of my machine, some parts being 'A showninscction, p Y l l is a plan view' ot my machine, some parte being broken away.`

5' is sectional elevation looking downonthe line -5 ,50i Fig. 3, otherparts being shown iii-sectionfand a regular grind,r

wheel beingshown in position; j Fig. v6 is an elevation showing amodilication` of'my construction, and Fig. 7 is"y aj plan viewof another'modification.

Fig.V 8 is a diagrammatic elevationjf-rom the koperating 'side showingfthe 'relation of thesupporting'wheels and runner 'tothe grinding vwheel'. Fig. 9 is a side elevation partly broken awayV showing my improved form'of `rail* runner., .l i A Fig. l() is a sectionjon line lO-lO of Fig. 9.

Fig. 11 is a side elevation showing part of the inside movablel frame with attachment for side grinding, the bearing 44 being removed.

F ig. 12 is` an elevation from the back, partly in section, and detail of the oonstruction shown in Fig. 11.

Fig. 13 is a detail side elevation of another method of transmitting power.

A My invention comprises a movable carriage, indicated by B, having, on what I will call the operating side, small railroad truck wheels F, F located one behind the other d and relatively a short distance apart, and

soY

at the other side similar wheels C, C which preferably are somewhat smaller in diameter than those marked F, F. I show the springs 7, 7 between the frame and wheels C, C which cause these'wheels to adjust themselves to slight variations in gauge and when taking curves. I v i In the drawings, I show 'this carriage made up of angle irons, such as 13, 13, at the front and back, inside bars 14, 14- parallel with 13, and side bars 15, 51, all suitably fastened together.

The interior bars 14 are shown as extending out beyond supporting wheels C and terminating in handles D, D, which are a suitable distance apart, for the convenience of one man in lifting. On the operating side, these inside bars 14 extend well out beyond the supporting wheels F as shown at 16, 16, and` they carry at their ends bearings 50 for the axle or bar 51 which carries derailingwheels G, which thus project from the carriage on the operating side. rThese derailing wheels, as shownV in Fig. `1, when the machine rests on the rails A, do not touch the ground, but when the handles D are lifted, they strikel the ground and a continuation of the lifting will shift the pivotal point from wheels F to wheels Gr, allowing the device to be readily moved off from the tracks.` tracks.

At the top, on the side of carriage B pro.\:i mate the operating side and wheels F, I show a famework I-I built up of angle irons 60, 61, bent and bolted to the front and back bars 13 and inside bars 14, as shown at 62, 62, 63, 63, and connected by the top' hars It can be readily replaced on the 64 and 65. To these top lbars is fixed a bed plate 66 which carries the adjusting wheel 20 for the screw P. 67 is a stifi'ening brace.

Attached to the inside bars 14 are also the four vertical guideways 12, each' of which is preferably channeled, as at 10, to receive a Ouiding part 11 bolted to the rigid frame K, which is thereby slidable vertically inside framework H. l

This slidable frame is shown as having front and back bars 70 which carry guide' members 11, side bars 71 and 75, vertical Ufshaped uprights 72 and 73, which are also connected by parallel bars 74, between which is bolted a screw plate 75, to which is HiredV the end of screw l). Y

This frame should be so made' that it will be very rigid and so that it can slide up and down in the guideways in accordance with the way in which wheel 20 is turned. Rig idly fastened to frame K is a motor L, shown as an electric motor, controlled bya rheostat O and supplied with power by means of a wire R which connects it to the trolley wire in a well known manner.

The front and back bars 70 of frame K extend out beyond thel wheels F on the operating side and are connected by means of bar 75. This bar 75 carries one bearing 44 for grinding shaft 42, the other bearing 45 being carried by another brace bar 76Y of the frame'K, as shown in Fig. 5. jThese bearings are rigidly carried by frame K, and the grinding shaft 42 is revoluble therein. Y

This shaft 42 is shown as carrying a grinding wheel M, which is of any usual type,

and as extending into slidable frame K, and as carrying on its inner end a sprocket or pulley 46 which is driven by a chain 41 from a similar sprocket or pulley 47 carried by the shaft 40 of motor L. Y

The shaft 42 Vcan be removed to replace wheel M by removing bearings 44 and 45 or by removing nuts 130, 131, 132.` Collars 133 hold M to 42.

In the operation of such devices, a de-l pression, such as shown at 90 Vin Fig. 2, in the rail A, is filled with welding material, such as lW, which usually more than fills up the depression, leaving a mound which must be ground down.

In the operation of my machine, the grinding wheel is adjusted by means ofthe wheel 20 to a point slightly below 91the' top level of this mound, as indicatedat 92. The motor is started and the carriage is pushed back and forth, preferably by means of the handles 97, and when the level 92 is ground down., the grinding wheel is successively set at 93, 94, 95, and inallyat 96, which corresponds with the topl of the rail'. In'place of the wheels F, F on the operatmg side, I may, as shown in Fig. 6, use run- -nersl 101 and 102, between which is located the grinding wheel M. This is especially useful wherethe rail A is corrugated with high spots 103 and low spots 104, asin thisl case the runners do not drop into the depressions but keepthe grinding wheel on a uniform level.

As shown in Fig. 6, the grinding wheel may be fixed directly to the shaft 40 of motor L which may be set low in frame K to permit thereof. i As shown in Fig. 7, instead of the twok supporting wheels C, C, I may use a single ruimer, such as 105, carried` by a suitable llO V `shaped connection 106, connected to the inside bars 14. l r 1 I may leave out the flanges, such as shown at 107, and may use for the forward supportingmeans on the'operating side a runner, such as T, retaining thewheel F lat the rear on the operating side and the wheels 0,0 on the otherside. As the wheels C, C and F are fianged, it is 4not necessary to have a flange` if such runner T is used only on the forward side, as shown in.Fi g.'8. Y .y

Y A decided advantageofthis arrangement is that where the rail 1s corrugated, as shown at 104 in Fig. 8, the runner- T runs over it, striking the higher spots and keeping the level, while the grinding ywheel M is grinding oiftherough spots in such manner that, after it has passed, the part 108 is smoothand level so that there isno tendency for 'the follower wheel F to drop into depressions or rise on elevations. Y Y

For certain classes of work, I prefer to make this runner of the form. shown at lV in Figs. 9 and 10, with a longitudinal channel 120, and preferably with upturned ends 121, 121, and revoluble in this channel the series of aligned rolls 122, shown as .held in place by headed pins l123 and cotter pins 12e. It is evident that these rollers 122being arranged accurately in line, permit the runner V to travel over uneven surfaces on a level, as they strike only the high spots. At the same time, they permit the whole machine to be moved about with more facility than where a runner, vsuch as 101, 102 and 105, without rollers, is used.

I preferv to use with this construction a fin iiange 125 whichV serves thesame purpose as flange-'107. l

My rail grinder can also b'e used for grinding the side,.as well as the top, of a rail, by using a thin grinding wheel, such as S shown in Fig. 11, which can be lowered down by suitable means alongside the rail to even it up,ras by cutting oif any surplus welding material or by smoothing out lateral corrugations.

In Figs. 11 and 12, Ishow aconstruction for grindingtheside of the rail which I find very satisfactory. In this construction, a pivot bar 110 is'riveted or otherwise fastened between the uprihts 73 on the operating side of the frame and this pivot bar carries a suitable bearing 111 for a hand le# ver 112. This hand lever is forked at 113 and carries pins 114 which enter suitable holes in a collar 115, which is carried by a sleeve 116, which also carries the thin grinding wheel S.

This sleeve 116 is slidable on shaft 42 and it, with wheel S, is revoluble thereby through the medium of a spline 117.

When it is desired to grind the side of a rail or the side of a groove, such as 118 shown in` Fig. 12, the frame, motor and grinding wheel are all lowered down by meansof screw P, and then by means ofhanf dle 112, the grinding wheel is moved, oper-A ated and manually controlled as the-carriage is moved back and forth on the rail.

As shown in Fig. 13, instead of a chainorv belt connection between the motor shaftAO and the grinding shaft 42, I-can use they a movable Acarriage having on the operating side two wheels, .one behind the other, adapted to move on one rail and ony the other side one or more supporting vwheels offless dianrl eter adapted to move on the other .rail-and so located as vto cantY the carriage downward on that side and a framework proximate the operating side with rigid vertical'guideways, 'l

of arigid frame slidablein said guidegvays,y

a motor rigidly carriedbyfthe said frame,r "i and bearings rrigidly carried by said frame,

an adjusting screw to raise and lower thev frame in the guidewayswith reference to the framework, a shaft. in saidv bearings revofluble by said moto-r, 'and` a grinding tool car-l ried by said shaft in position to `be brought in contact with the rail on the operating side by said adjusting screw, together v withv derailing wheels which project from the carriage on the operating side. n L ,y

2. In a rail grinder, the combination with a movable carriagev having on theoperating side supporting 4means one behind the other adapted to move on Vone rail, anden the other side ,supporting means adapted toy move on the other rail and a framework proximate the operating side having'ri-gid substant,ia-llyv vertical guideways, of yarigid .frame slidable in lsaid guideways, a'motor and bearings rigidly carried `by saidn frame, vra shaft insaid bearings revoluble by said motor, a grinding tool revolublefwith said shaft in positionto engage the rail fon theoperatingside, and means to adjust the vertical relation between the frame and the framework, together with derailing wheels which proj ect from the carriage on the operating side.

3. In -a rail grinder, the combination with a movable carriage having on thev operatingl side supportingmeans one behind the otherl adapted to move onV one rail, and on the other side supporting means adapted to-V move on ythe other rail and a framework proximate the operating side having rigid substantially vertical guideways of a 'rigid frame slidable in said guideways, a motor and bearings rigidly carried by said frame, A

a shaft in said bearings lrevoluble by said motor, a grinding tool revoluble with said shaft in position to engage the rail on the Y operating side, and means. to adjust the vertical relation between the frame and the framework. l

i-ln a rail grin-der, thecombination with ay movable carriage having on the operating side two wheels one behind the oth'er adapted to move on one rail, and on the other side supporting means adapted to move on-the other rail, and a framework proximate the operating side having rigid substantially vertical guideways, oa rigid frame slidable in said guideways7 a motor rigidly carried by said frame, bearings rigidly carried by said frame, a shaft in said bearings lrevoluble by said motor, a grinding tool slidable on and revoluble with said shaft in position to engage the rail on the operating side, and means to adjust the vertical relation between the iframe and the lframework, together with derailing wheels which pro"- ject from the carriage on the operating side.

5. In a rail grinder, the combination with a movable carriage having on the operating side two wheels, one behind the other, adapt ed to move von one rail and on the other side one or more supporting wheels of a different diameter adapted to move on the other rail and so located as to cant the carriage, and a framework proximate the operating side with rigid substantially vertical guideways, of a rigid frame slidable in said guideways, a motor rigidly carried by the said frameand bearings rigidly carried by said frame, an adjusting screw to raise and lower the iframe in the guideways with reference to the framework, a shaft' in said bearings revoluble by said motor, a grinding tool slidable on and revoluble with said shaft .in position to engage the rail on the operating side, rand derailing wheels which proect from the carriage' on the operating side.

6. ln a rail grinder, the combination with a movable carriage having on the operating side two wheels, one behind the other adapt-- ed to move on one rail, and on the other side one or more axles, a supporting wheel of a different diameter from the irst named wheels supported by each aXle and slidable thereon, a stop for each supporting wheel and a spring adapted to normally'press each wheel against such stop, such supporting wheels being adapted to move on the other rail, derailing handles which project proxi* mate the last named supporting w-heels and a. 'framework proximate the operating side having rigid substantially vertical guideways, of a rigid frame slidable in said guide,- ways, a motor rigidlycarried by said frame, bearings rigidly carried byy said. frame,`a sha-ft in said bearings revoluble by said mov tor, a grinding ytool slidable onand revoluble with said shaft in position to engage the rail von the operating side, and' means to adjust the vertical relation between the frame and the framework; together with derailing wheels which project lfrom the carriage on the operating side, together with propelling handles attached to the carriage. j

7. In a rail grinder, the combination with a movable carriage havingon the operat-v ing side two'wheels' one behind the other adapted to move on one rail, and derailing wheels which proj ect'from the carriage, and on the other side one or more relativelylight supporting wheels, adapted to move on the other rail, together'with derailing handles, of grinding mechanism including a grinding wheel, a motor, guideways, and' mechanism for raising and vlowering the motor and grinding wheel, such grinding wheel being located between the wheelson the operating side7 the guideways, motor, grinding wheel and derailing wheels, beingso'l positioned that when operating the center 'of gravity 1s proximate the operating side, and vwhen derailing thederailing wheels will engage the ground about the time the center of gravity of the device is over the rail on the operating side. j i

In testimonywhereof l have alixed my signature. i

EPIPHANE i5.y siMARD. 

